Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 570 · 40 questions

Engineer's tip (Find the topic, use the idea): Find the topic: design process, force, machine, lever, structure, material, bridge or scale. Use that lesson’s rule — what is in the middle, load × distance = effort × distance, work = force × distance, real = drawing × scale. Write the calculation before you answer.

1. 1.🌉 A beam bridge 175 m long is split by piers into 7 equal spans. How long is each span, in metres?
2. 2.🏋️ A force of 190 N did 1140 J of work. How many metres did the object move?
3. 3.📋 A constraint is … (a) a kind of glue (b) a final test (c) a limit you must keep to (d) a goal for success
4. 4.🔄 Which design-process step is it to ask who will use it? (a) Imagine (b) Create (c) Plan (d) Ask
5. 5.🧱 Which property matters most for a car seat belt? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
6. 6.🛠️ Is a mobile phone made by engineers or found in nature? (a) found in nature (b) made by engineers
7. 7.🛠️ People need to make power from sunlight. Which invention helps? (a) a solar panel (b) a lift (c) a telephone (d) a dam
8. 8.♻️ Which energy source will never run out? (a) coal (b) petrol (c) sunlight (d) diesel
9. 9.🛞 How can we reduce friction in a machine? (a) make parts rough (b) press parts harder (c) oil the moving parts (d) add sand
10. 10.🧪 A paper bridge was tested three times. It held 270 g, 200 g and 310 g. What is the mean (average) load it held, in grams?
11. 11.🔺 A beam bends under a load. Its top side is … (a) not affected (b) stretched (tension) (c) squeezed (compression) (d) floating
12. 12.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
13. 13.True or false: a biomedical engineer designs knee implants. (a) False (b) True
14. 14.🌉 Which bridge type: “the simplest bridge”? (a) beam bridge (b) suspension bridge (c) arch bridge
15. 15.⚖️ Which class of lever is a lemon squeezer? (a) class 3 (b) class 1 (c) class 2
16. 16.🔢 To follow the engineering design process, what comes right after “Test”? (a) Imagine (b) Create (c) Ask (d) Improve
17. 17.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 30 cm and the load at 60 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
18. 18.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) build it with straws (c) read the challenge rules (d) load it with coins
19. 19.🏋️ Work is done when a force moves something … (a) without moving it (b) only upwards (c) through a distance (d) very slowly
20. 20.True or false: a pair of pliers is a class 3 lever (effort in the middle). (a) False (b) True
21. 21.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
22. 22.🏋️ A machine lifts a load of 420 N when you push with 70 N. What is its mechanical advantage (MA)?
23. 23.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) using a heavy roof (d) building tall and narrow
24. 24.🤝 In a design team, who checks the goals are met? (a) recorder (b) tester (c) builder (d) materials manager
25. 25.Which of these is made by engineers? (a) a volcano (b) a railway track (c) a seashell (d) a waterfall
26. 26.📋 Your team’s budget is ₹32. You must buy one roll of tape for ₹15. Straws cost ₹3 each. What is the greatest number of straws you can buy?
27. 27.True or false: “a rope bridge in hills” is an arch bridge. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) copper (d) steel
29. 29.⚖️ A seesaw balances. Meena (480 N) sits 2 m from the pivot on one side; Zoya (240 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
30. 30.True or false: to carry scissors closed is safe. (a) True (b) False
31. 31.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) biomedical (b) civil (c) chemical (d) mechanical
32. 32.🪢 Tension or compression: a stretched rubber band? (a) tension (b) compression
33. 33.🏋️ A force of 210 N did 1680 J of work. How many metres did the object move?
34. 34.True or false: a biomedical engineer runs a fertiliser plant. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) stacking loose bricks (d) having a wide base
36. 36.True or false: a slab over a canal uses a beam. (a) False (b) True
37. 37.🔢 To follow the engineering design process, which comes first: “Test” or “Improve”? (a) Improve (b) Test
38. 38.🔄 What is the FIRST step of the engineering design process? (a) Ask (b) Test (c) Create (d) Improve
39. 39.🔢 To follow the engineering design process, which comes first: “Ask” or “Test”? (a) Ask (b) Test
40. 40.🪢 Tension or compression: a bridge pier? (a) tension (b) compression

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